P Palthera
Signalling Peptides

Thymalin

Thymalin (polypeptide extract)

Thymalin is a peptide complex extracted from calf thymus tissue, developed and characterised by the Khavinson group in St Petersburg, Russia. It is registered as a preparation in the Russian Federation. The peer-reviewed literature consists predominantly of work from the Khavinson group and collaborators across cellular ageing, immunology, and pineal-thymus axis research.

Add to comparison Subscribe
Abstract reference visual for Signalling Peptides.
Signalling Peptides
Classification
Polypeptide complex extracted from thymus tissue · Russian Federation registered preparation
Research stage
Khavinson-group experimental and observational literature spanning four decades; limited independent replication outside the originating research network
Sequence
Mixture of short peptides extracted from calf thymus (not a single defined sequence)
Molecular weight
Variable (mixture)

Snapshot

Key takeaways

A three-bullet snapshot before reading the full dossier.

  1. 01

    Polypeptide complex extracted from calf thymus (not a single defined ).

  2. 02

    Registered as a preparation in the Russian Federation; not FDA-approved or EMA-approved.

  3. 03

    Peer-reviewed evidence base is concentrated within a single research network.

Dossier overview

3

research areas

3

references

3

handling notes

01

Mechanism of action

Khavinson-group research describes thymalin effects on T-lymphocyte differentiation and immunoendocrine signalling, particularly in the context of thymic involution during ageing. Mechanism interpretation outside the originating literature is limited.

02

Research applications

  • Thymic-peptide and immunoendocrine ageing research
  • Hematopoietic / T-cell differentiation research
  • Pineal-thymus axis research

Evidence at a glance

What's behind this profile

3 citations · 2002–2020

In vitro
1

Cell, tissue, or biochemical assays outside a living organism.

Review
2

Narrative or systematic reviews; no primary data.

Publication years

  1. 02
  2. 03
  3. 04
  4. 05
  5. 06
  6. 07
  7. 08
  8. 09
  9. 10
  10. 11
  11. 12
  12. 13
  13. 14
  14. 15
  15. 16
  16. 17
  17. 18
  18. 19
  19. 20
20022020

Counts are derived from the cited studies below. A study covering both in vivo and in vitro work is counted by its primary model. Sample size is reported in 1 of 3 citations. Findings remain model-specific and are not extrapolated to therapeutic use.

03

Study references

Each profile cites a minimum of two peer-reviewed sources, with model type and reported sample size where the source provides it. Findings are model-specific and must not be extrapolated to therapeutic use.

Peptides and Ageing

2002

Khavinson VKh et al. · Neuro Endocrinology Letters

Model
Narrative review of tissue-specific peptide preparations including thymalin and epithalamin
Sample
Multiple studies (rats, mice, fruit flies, rhesus monkeys, humans)

Reviewed Khavinson-group experimental and clinical data describing geroprotective effects of tissue-specific peptide preparations across multiple species.

PMID 12374906

Thymalin: Activation of Differentiation of Human Hematopoietic Stem Cells

2020

Khavinson VK et al. · Bulletin of Experimental Biology and Medicine

Model
In vitro — human hematopoietic stem cell differentiation assays
Sample
Not reported in abstract

Thymalin was associated with reduced stem-cell markers and elevated CD28+ expression, framed as activation of T-lymphocyte differentiation in the system used.

PMID 33237528 DOI 10.1007/s10517-020-05016-z

Characteristics of the pineal gland and thymus relationship in aging

2011

Lin'kova NS et al. · Advances in Gerontology

Model
Narrative review of pineal-thymus axis research
Sample
N/A (review)

Reviewed pineal and thymic peptide preparations (epithalamin, thymalin) in the context of immunoendocrine ageing, with claims of greater geroprotective effects from pineal preparations.

PMID 21809618

Evidence caveats

  • Thymalin is not FDA-approved or EMA-approved. Its registered status in the Russian Federation does not constitute approval elsewhere.
  • The peer-reviewed evidence base is concentrated within the Khavinson research network. Independent replication outside this group is limited, and findings should be interpreted accordingly.

04

Storage and handling

Store under controlled laboratory conditions with batch and preparation details recorded.

  • Research-only inventory; not for human use outside the Russian Federation registered indications.
  • Maintain batch and supplier documentation.
  • Verify supplier provenance carefully — thymalin sold outside registered channels is heterogeneous.